Lenovo ThinkPad Privacy Filters utilize microreplication technology from 3M to create an excellent viewing experience on your high resolution displays. Lenovo Privacy Filters blackout side views quickly, delivering privacy and keeping visual hackers in the dark. This is a key benefit to companies as it provides the first line of defense against visual hacking protecting private information from being hacked by on lookers. Privacy filters also reduce glare from bright backlight panels and overhead lights though that's not its primary function. Another function is that privacy filters guards and protects your screen from scratches and smears keeping your monitor screens safe from unwanted destruction. We offer touch specific parts and non-touch parts to align with the device capabilities.